Bug fixed.

Revert 1.0.14 d06f831 for #50

Bug fixed.

1. Merge #27, bug fixed.

Bug fixed.

1. Fix #24, Support none AVR boards
2. Fix #25, Combine error and t into error code.

Bug fixed.

For #14, for negative temperatures:

Artuino UNO R3:

• DHT11.
• DHT22.

Algorithm refined.

Refine algorithm from #22

DHT11:

• ESP8266
• Mega2560 r3
• Arduino UNO R3

DHT22:

• Arduino UNO R3

Bug fixed.

1. Merge #16, Fix negative temperatures for DHT22

Bug Fixed

Fix the bugs:

1. Use correct separator in keywords.txt (#12) 5e91c5d

Bug fixed.

1. Fix DHT11 zero samples bug. 000a52c#diff-f7ea3c8fdb917259dfc681cac4833722R32
2. Refine protocol for DHT22. 000a52c#diff-f7ea3c8fdb917259dfc681cac4833722R221
3. Write example to stat success rate. #11

Note: Both DHT11 and DHT22 work well under test.

Support DHT22

1. Fix #2, Support DHT22.
2. Fix #9, Support Teensy.
3. Correct the humidity unit of DHT11, it's H.
4. DHT22 humidity unit is RH%.
5. Support more accurate data of DHT22, with fractional.

Remark: This release has zero samples bug for DHT11.

Bug fixed.

1. Fix #7, use macro to replace the class static field for build failed.
2. Update the properties to 1.0.4

Remark: The DHT22 of this release doesn't works for data format changed.